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12 Volt: Rewind Generator or Alternator???

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Jake

03-21-2001 16:49:42




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Hey Guys,
This place has got some great knowledge and am needing some more. Considering, not concrete, in changing my tractor to 12 volt. What are the benefits/downgrades of using either a gnerator or an alternator? I know nothing is "gsopel," just opinion. I want to hear them. Thanks




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bob w

03-24-2001 01:03:10




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 Re: 12 Volt: Rewind Generator or Alternator??? in reply to Jake, 03-21-2001 16:49:42  
i just converted my 240 utility to 12v . i live in northren minnesota so it greatly helped it for starting on those 0 degree days. one thing you need to keepin mind is that you will need to change over to 12v lights and add a chrysler balast resister and a 12v condencer on the positive wire to the coil, i also had a hard time finding an alternator that would bolt up with out lots of modifications, i ended up using a small framed chrysler alternator with an external regulator . hey it took some work but then again when i need it to start for snow removal it does so in my oppnion it was worth it all

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joe

03-22-2001 03:01:36




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 Re: 12 Volt: Rewind Generator or Alternator??? in reply to Jake, 03-21-2001 16:49:42  
I replaced the generator with a 12v alt. from a chevy truck, this has a small pulley dia. As soon as my tractor fires the system start to charge, even if started at idle. I am very happy with it. Its nice to have everything at my house the same voltage and polarity, and it replaced a nonworking system without spending alot of money. I think all togather it ran about $30.



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John

03-21-2001 22:30:38




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 Re: 12 Volt: Rewind Generator or Alternator??? in reply to Jake, 03-21-2001 16:49:42  
Stick with the 6 volt system. These units "turn on" at a very low rpm, allowing care free operation at any engine speed unlike a lot of so-called "tractor alternators" that sell for as much as $89.00 and only excite at full throttle!(and sometimes not even then!) We are talking about a tractor which only needs the electrical system to start, power the ignition and a couple of lights. Most of the old tractors with 6 volt electrical systems are at least 40 years old and if the 6 volt system was as bad as these "12 volt cheerleaders" claim they would have been converted over to 12 volts in the late 60s and early 70s.

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stevie_alc

03-21-2001 20:09:28




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 Re: 12 Volt: Rewind Generator or Alternator??? in reply to Jake, 03-21-2001 16:49:42  
Have an M on 12 volt. Went with new plugs,12 volt coil and electronic igniter to replace points and condenser. Mabe the plugs wont foul as much. With todays gasoline you need a good hot spark. I should add I used an alternator.



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stevie_alc

03-21-2001 20:07:13




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 Re: 12 Volt: Rewind Generator or Alternator??? in reply to Jake, 03-21-2001 16:49:42  
Have an M on 12 volt. Went with new plugs,12 volt coil and electronic igniter to replace points and condenser. Mabe the plugs wont foul as much. With todays gasoline you need a good hot spark. I should add I used an alternator.



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stevie_alc

03-21-2001 20:04:50




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 Re: 12 Volt: Rewind Generator or Alternator??? in reply to Jake, 03-21-2001 16:49:42  
Have an M on 12 volt. Went with new plugs,12 volt coil and electronic igniter to replace points and condenser. Mabe the plugs wont foul as much. With todays gasoline you need a good hot spark. I should add I used an alternator.



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Bob M

03-21-2001 17:59:26




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 Re: 12 Volt: Rewind Generator or Alternator??? in reply to Jake, 03-21-2001 16:49:42  
Hey Jake - It all depends! Key consideration is whether you're gonna use your tractor for work or for play/show.

If the answer is work, an alternator is the only way to go. It's pretty much maintenance free and will provide lots of juice to charge the battery at low speeds. Also 12 volts provides reliable starting in the most unfavorable (cold) weather conditions. And alternators, 12 volt maintenance-free batteries and 12 volt lights are available everywhere and are relatively cheap.

On the other hand if you're tractor is used only for show or fun, stock 6 volts is probably preferred. So long as the electrics are kept in top condition and the motor is in good tune, it'll start and run fine with the stock 6 volt system. And there's just something cool about a 6 volt motor slowly tipping over on the starter, then firing up. But the 6 volt will require more maintenance - battery to keep watered, cables and connections must be kept in 1st class shape, mechanical regulators are fussy and expensive to replace, etc.

Kinda in the middle is a 12 volt generator rewind. This provides most of the functional advantages of an alternator - exceptions being low speed charging capacity and reliability. But if done right it will look like factory stock.

Hope this helps...

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peterc

03-21-2001 17:55:21




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 Re: 12 Volt: Rewind Generator or Alternator??? in reply to Jake, 03-21-2001 16:49:42  
if you are going to 12 volt the alternator is better choice. The alternator only needs one wire and you eliminate the regulator. Just my opinion.



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